Samsung Galaxy S10 and S10 + Has a Fingerprint Sensor Defect

Samsung Galaxy S10 and S10 + sensors do not work correctly when using protective films

Galaxy S10 and S10 + found that the sensors do not work correctly even when using proprietary protective films installed by Samsung at the factory. Work is established only if the factory protection is removed, which, as promised by the manufacturer, should not affect the operability of the sensor. Safety glasses worsen the situation even more.

Smartphone Samsung Galaxy S10 and S10+, which the company introduced in February and which costs from $1k, it is also possible to crack using a cheap gel film for the display. It is sold online, including on eBay and AliExpress, the price starts from $2.

This method was discovered from the owners of the Galaxy S10 smartphone, which ordered such a film on eBay. He claims that the sticker impedes the full-fledged operation of the fingerprint, which is not optical, but ultrasonic.

The fingerprint generates ultrasonic waves and directs them to the applied finger, and then receives and processes the waves reflected from it. Due to its gel structure, cheap film “remembered” his fingerprint, and as a result, the lock is removed every time, regardless of who holds the smartphone. Standard safety glasses create a small gap between the finger and the display, which reduces the effect of the sensor.

Samsung said it had initiated an investigation. The developers are sure that the matter is not in the sensor and not in the software for it, namely in the low quality of the film.

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Marina Alex

She's a Technology News Reporter at Next Web Hack. She has completed her Bachelor in Science (B.S) in Computer Science and also a Certified Ethical Hacker & Security Analyst by EC-Council.

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